diff options
Diffstat (limited to 'net/ipv4/netfilter/nf_conntrack_proto_icmp.c')
| -rw-r--r-- | net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c index 5fd1e5363c1a..f4fc657c1983 100644 --- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c +++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c @@ -4,11 +4,6 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp> - * - enable working with Layer 3 protocol independent connection tracking. - * - * Derived from net/ipv4/netfilter/ip_conntrack_proto_icmp.c */ #include <linux/types.h> @@ -158,7 +153,7 @@ icmp_error_message(struct sk_buff *skb, NF_CT_ASSERT(skb->nfct == NULL); /* Not enough header? */ - inside = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_in), &_in); + inside = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_in), &_in); if (inside == NULL) return -NF_ACCEPT; @@ -172,7 +167,7 @@ icmp_error_message(struct sk_buff *skb, /* rcu_read_lock()ed by nf_hook_slow */ innerproto = __nf_ct_l4proto_find(PF_INET, inside->ip.protocol); - dataoff = skb->nh.iph->ihl*4 + sizeof(inside->icmp); + dataoff = ip_hdrlen(skb) + sizeof(inside->icmp); /* Are they talking about one of our connections? */ if (!nf_ct_get_tuple(skb, dataoff, dataoff + inside->ip.ihl*4, PF_INET, inside->ip.protocol, &origtuple, @@ -227,7 +222,7 @@ icmp_error(struct sk_buff *skb, unsigned int dataoff, struct icmphdr _ih, *icmph; /* Not enough header? */ - icmph = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_ih), &_ih); + icmph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_ih), &_ih); if (icmph == NULL) { if (LOG_INVALID(IPPROTO_ICMP)) nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL, |